19 year old book

[carebear_007]

While going through my stuff I found a packet of books that was never opened. I signed up for English 1A back in 2002 at a local college but ended up dropping out and never bothered to get a refund on the books. I just peeled off the plastic just now. One is a spiralized book of The College Writer's Reference Third Edition, the other is the Editing Activities for The College Writer's Reference, and an access code for the required course materials. I don't even know how many editions have come out since then. Do they change much?---is this edition obsolete or can I use it as a guide? I'm hoping to take the TECEP for English Comp II and it would be great if I can use this as a source.